Compound lining machine



J. M. HOTHERSALL COMPOUND LINING MACHINE June 23, 1931.

Original Filed Oct. 1, 1927 2 Sheets-Sheet 1 ATTORNEYS June 23, 1931. .1. M. HOTHERSALL 1,811,433

COMPOUND LINING MACHINE Original Filed Oct. 1, 1927 2 Shets Sheet 2 ATTORNEYS Patented June 23, 1931 UNITED STATES PATENT OFFICE JOHN M. HOTHERSALL, OF BROOKLYN, NEW YORK, ASSIGNOR T AMERICAN CAN COM- PANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY COMPOUND LIN'ING MACHINE Apflication filed October 1, 1927, Serial No; 223,283. Renewed February 26, 1931.

This invention relates in general to a machine for lining can end flanges with a gasket compound, and has more particular reference to a double eccentric turret die machine for accomplishing the die lining operation. I y

In the sanitary type of can for perishable foods, it is customary to provide the inner flanged surface of the can ends with a gasket or lining of a compound which forms a packing to insure a hermetic joint when the can end is double seamed to a can body. The lining compound may be deposited in the flange of a can end in a variety of ways, and the present invention relates to an improved, simple, and compact mechanism for dipping a die into a liner compound and depositing a gasket thereof 1nto the flange of a can end.

An important object of the invention is the provision of a continuously operating die lining machine which brings can ends and lining die or dies together at a station where the lining is applied, by means of two eccentric turrets of different sizes rotating in the same direction.

Another important object of the invention is in the provision of a can end lining machine in which the lining die di s into a.

lining compound, picks up a film o the compound, and deposits it in the form of a gasket in the flange of a can which is seated in an upright position in a turret pocket.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodlment thereof.

In the drawings:

Figure 1 is a side elevation, with parts broken away for clearness, of a can end lining machine in accordance with this invention;

Fig. 2 is a top plan View of the machine; and

Fig. 3 is a fragmentary cross-section, showing in enlarged detail some of the more important parts.

In this invention, the can end carrier and the die carrier are eccentrically mounted for continuous operation with a common driving engagement, which insures them being in register at the lining station where a can end is seated with its flange in upright osition, so that the lining die is moved vertically to dip into the lining compound and then to apply the compound in the flange of the can end at the lining station without any interruption of the continuous movement either of the can end carrier or of the die earner.

Referring more particularly to the drawings, the machine rests upon a single support 5, which supports a driving shaft 6 to which is connected a pulley 7 for the application of power thereto.

Connected to the top of the support 5 is a frame 8 having a ring plate 10 secured to its upper edge by a number of fastening screws 9. In an arm 11 depending from the frame 8, a. vertical shaft 12 is mounted, which is connected to the driving shaft 6 by interengaging bevel gears 13 secured to the adjacent ends of shafts 6 and 12.

A stationary bearing shaft 14. is secured at its lower end to the upper end of the support 5 by means of a key 15 seated in the reduced end 16, which forms a shoulder for v holding the shaft in its vertical position.

A die carrier, comprising a sleeve 17, is mounted for free rotation upon the shaft 14 and is supported in its vertical position by ball bearings 18 at the top of the support 5. The lower end of this sleeve is formed with a spur gear 19 meshing with a corresponding gear 20 keyed to the upper end of the vertical driving shaft 12 for constantly rotating the die carrying sleeve 17.

In the frame 8 is a deep annular recess 21 at the bottom of which is a cam track 22 having a raised portion 23 and mounted to rotate at the top of the recess is a can end carrying turret 24 in the form of a ring gear with internal gear teeth 25 meshing with a spur gear 26 extending from the sleeve 17 of the die carrier. Depending from the upper face of the carrying turret- 24 are pockets 27, in which can end supporting heads 28 fit loosely. The (lies are preferably less in number than the pockets 27. Each head 28 has secured to it the upper end of a supporting pin 29, of which the lower end is slotted for mounting a bearing roller 30 therein contacting with the cam track 22.

A magazine for can ends 31 is formed by an extension 32 of the ring plate 10 which has a perforation directly in register with the pockets 27 of the can end turret 24 as they pass below it, with a number of rods 33 extending above thering plate for depositing the can ends therein from the top. When any one .of the turret pockets 27 is brought into exactalinement with the stack of can ends, the lowermost can end drops into and is carried around in the pocket, the can supporting head 28 at this time being held in such a position that one can endonly is engaged by each pocket.

The die carrying sleeve 17 extends through and above the turret ring plate 24, and in its upper portion has projecting arms 34 with hearing enlargements at the outer ends for slidable supporting bearing sleeves 35. A lining die 36 is secured to the lower end of each sleeve 35 and movable within the sleeve, through the interior of the lining die, is an ejector rod 37. Each lining die 36 has an annular die face 38 conforming to the shape of the channel in the flange of the can end 31 and adapted to deposit lining compound within the flange. A lining compound reservoir 39 is mounted upon an inward extension 40 of the frame 8 below the rotary path of travel of the dies 36 within the turret plate 24, and a feeding bottle 41 is supported by a bracket 42 attached to the ring plate 10 with suitable piping connection 43 for keeping the reservoir 39 supplied with lining compound 44. To apply the lining compound the die membore 36 must be moved in a vertical direction without interrupting their rotary movement by means of the die carrier. A cam head 45 is keyed to the shaft 14 and supported against downward movement by a shoulder 14 on the shaft 14 and shown in dotted lines in Fig. 1. In the outer peripheral face of the head 45 is a cam channel 46 for engaging cam rollers 47 carried by brackets 48 secured to the upper ends of the die operating sleeves 35, and a cam surface 49 for engaging cam rollers 50' carried by a support 51 at the upper end of each ejector rod 37. Each of the brackets 48 has lateral extensions 58 engaging the outer face of the head 45 to prevent its rotation, and upward extensions 59 to engage opposite sides of the corresponding support 51 to hold it against rotatlon, and to hold the roller 50 in the path of its cam 49.

As the die carrier is continuousl rotated, each die is operated by means 0 the cam groove 46 to dip downwardly into the compound reservoir 39, to engage the compound 44 therein to pick up a film of com ound, and is then raised gradually to clear t e turret plate 24 and is then lowered again to make contact with the can end positioned in a pocket of the turret at the die lining station, where the movement of the die and a can end corresponds for a short distance of their travel. "The die is then raised from engagement with the can end 31 and in order to prevent the can end from being raised with the die, by adhering thereto, the ejector rod 37 contacts with the can end until its die 36 is free from engagement, whereupon the ejector rod is raised from such engagement by said cam surface 49.

After the can end has been lined by the die, it is carried by the turret 24 until it encounters a star discharging wheel 52, rotated by means of a sprocket chain 53 which engages sprockets 54 and 55 formed integral with or attached to the die carrying sleeve 17 and the star wheel 52 respectively. Each can end is raised'to the level of the turret plate 24 by means of the raised portion 23 of the cam track 22, the supporting head 28 being flush with or slightly below the level of the turret plate 24, so that the discharge wheel 52 can readily engage and move each can end from the turret plate 24. Each arm of the star wheel has on its under side two can end engaging pins 56 which engage the periphery of a can end and brush or wipe it from the turret plate 24, and thence move it into a can end drier 57, or other operating mechanism as indicated in Fig. 2.

With this construction, it is obvious that, although the can end pockets and the dies differ in number, the dies will be brought successively into engagement with the successive can ends at the lining station, which is the only position where the die is in accurate vertical alignment with a turret pocket.

It is thought that this invention and many of its attendant advantages will be understood from the foregoing description, and it Wlll be apparent that many changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrlficlng all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In a gasket lining machine for can ends having a lining applying station, the combination of a source of lining compound,

continuously moving dies having the shape of the gasket to be formed and receiving lining compound from said source to form said gasket, a continuously moving can and carrier having a path of travel intersecting that of the dies, and means causing relative approach and retreat of the can ends and dies at such intersection to accomplish the application of the compound.

2. In a gasket lining machine for can ends having a lining applying station, the combination of a source of lining compound, dies shaped to carry a gasket thereon and adapted to receive compound from said source to form said gasket, can end supporting members, and means moving said dies and can end supporting members through circular paths of difi'erent radii and coincident at said lining applying station.

3. In a gasket lining machine for can ends having a lining applying station, the combination 'of a source of lining compound, dies shaped to carry gaskets thereon and adapted to receive compound from said source to form said gasket, can end support ing members, means moving said dies and can. end supporting members through circular paths of different radii and coincident at said lining applying station, and means causing relative approach and retreat of said dies and can end supporting members to effect application of the lining compound to the flange of the can ends.

4. In a can end lining machine, a movable carrier for can ends, a lining compound reservoir, and a die having the shape of a gasket and movable continuously and in a dlfferent path than said carrier but having a limited travel coinciding with that of the carrier, and means for moving the die to dip downwardly into the reservoir, pick up a film of compound and deposit it upona can end to form a gasket during the travel of the carrier and die.

5. In a can cover and lining machine, a movable carrier for can ends, and a rotatable die for applying a gasket compound to can ends supported by the carrier, the carrier and die member being eccentrically mounted and moving in unison during a part of their travel.

6. In a can end lining machine, a rotatable carrier for can ends, and a die member mounted eccentrically to said carrier and moving in unison with the carrier through a limited portion of their travel, and means for raising and lowering the die for applying a film of lining compound to a can end in said carrier during said limited portion of their travel.

7. In a can end lining machine, a con tinuously rotatable carrier, means for feeding can ends one at a time to said carrier, a movable die mounted eccentrically to said carrier, a lining compound reservoir, means for moving the die to-dip downwardly into the reservoir, pick up a film of compound and deposit it upon each can end supported by the carrier, and means for discharging lined can ends from the carrier.

9. In a can end lining machine, a rotatable carrier having a plurality of pockets, with heads movable therein, a magazine for feeding can ends one at a time into said pockets, a lining compound reservoir, a die movable into the reservoir to pick up a gasket of lining compound and deposit it in can ends supported in the pockets of the carrier, and means for raising the said heads in the pockets to discharge lined can ends from the carrier.

10. In a can end lining machine, a continuously rotatable carrier for can ends, a movable lining die eccentrically mounted relative to the can and carrier and having a geared connection therewith, said carrier and die having paths of movement which are partly in unison, a lining compound reservoir, and means for raising and lowering the die without interrupting its continuous movement with the carrier, said means dipping the die into the reservoir to pick up the compound and moving the die downwardly to deposit the compound upon a can end at the point of movement of the carrier and die where they move in unison.

11. In a can end lining machine, a rotatable carrier for can ends, a rotatable die carrier arranged parallel with the can end carrier, a die having the shape of a gasket movable vertically in its carrier, and an ejector rod carried within the die for disengaging a can end therefrom.

12. In a can end lining machine having a lining station, the combination with a can end carrier and a die carrier mounted eccentrically to said can end carrier, said carriers havin a plurality of can end pockets and lining dies respectively, the dies being less in number than the pockets, and the pockets and dies being movable together a limited portion of their travel at said lining station, and means for moving the dies successively for lining can ends in successive pockets at the lining station.

13. In a can end lining machine, a movable carrier having a plurality of can end pockets, heads movable in the pockets for raising can ends therefrom, a die movable above the carrier and downwardly to line can ends in successive pockets, an ejector rod within each die movable to disengage a can end from the die as it is raised, and means for raising the heads in the pockets to release the lined can ends from the carrier.

14. In a can end lining machine, means for carrying the can ends to be lined, dies having the shape of a gasket for lining successive can ends as they are moved by the carrier, a carrier for rotating the dies and supporting them for vertical movement, and a fixed cam mounted above the die carrier for controlling the vertical movement of the dies. 1

15. In a can end lining machine, a rotatable can end carrier, a plurality of lining dies therefor, a rotatable die carrier arranged parallel with the can end carrier, die carrying tubes supported by the die carrier for vertical sliding movement, ejector rods movable in the tubes for engaging a can end when the die is raised therefrom, a fixed head having cam engaging portions and separate cams carried by the tubes and the rods for engaging the cam portions to operate the dies and ejectors in a vertical direction as they are moved by the die carrier. 7

16. In a can end lining machine, a rotatable carrier for can ends, a rotatable carrier and die thereon having the outline of the gasket to be formed, a lining compound reservoir, and means for moving the die to dip into the reservoir, pick up a film of compound and deposit it in a can cover as it is moved by the carrier to form a gasket on the cover.

17. In a can end lining machine the combination of a movable can end carrier, a die having the outline of the lining to be deposited on the can end, a movable carrier for said die, a lining compound reservoir, means for moving the can end carrier and the die carrier, and means for actuating the die to dip into the reservoir and to imprint the lining on the can end.

18. In a can end lining machine, a movable carrier for can ends to be lined, a number of can end lining dies for imprinting linings on the can ends successively, a rotatable die carrier for supporting the dies for axial movement therein to bring the dies successively, in line with the can ends, an ejector rod for each die and a fixed cam member have separate portions for separately operating the die members and the ejector rods in timed relation as the die carrier rotates to separate lined can ends from the dies.

19. In a gasket lining machine for can ends, the combination of a carrier for can ends, a receptable for linin compound, a movable lining die for imprinting a gasket of said compound on a can end placed by said carrier, said die being movable sidewise and to and from the compound in said receptacle and the can end to be lined, and mechanism operating said carrier and die in timed relat1on.

JOHN M. HOTHERSALL. 

